%I #12 Oct 08 2018 03:20:31
%S 1,4,6,8,12,8,8,16,6,12,24,8,24,26,8,28,28,40,46,40,56,28,48,64,24,76,
%T 72,32,80,32,32,92,54,80,80,64,68,56,80,64,88,112,64,40,88,52,64,128,
%U 56,108,110,64,106,80,76,160,104,96,168,56,124,112,120,124,92,208,96
%N Number of integer solutions to a^2 + b^2 + 2*c^2 + 13*d^2 = n.
%C a(n) > 0 for n >= 0.
%H Seiichi Manyama, <a href="/A320135/b320135.txt">Table of n, a(n) for n = 0..10000</a>
%F G.f.: theta_3(q)^2 * theta_3(q^2) * theta_3(q^13).
%Y Cf. A097057, A320124, A320125, A320126, A320127, A320128, A320130, A320131, A320132, A320133, A320134, A320136.
%K nonn
%O 0,2
%A _Seiichi Manyama_, Oct 06 2018